"Hopefully it will get done soon. Hopefully it will get done before the season," Gore said before Tuesday's practice. "If it don't, I've just got to go play. If I have to be a free agent, I'll be a free agent."
Davis signed a five-year extension worth $37 million overall, including $34 million guaranteed -- making him the highest-paid tight end in NFL history. In May 2010, Willis received a $50 million, five-year contract extension that takes him through the 2016 season and includes $29 million in guaranteed money. He earns $10 million per season.
Gore's situation is slightly different considering the 28-year-old two-time Pro Bowler missed the final five games last season with a fractured right hip sustained in a Monday-night game at Arizona on Nov. 29. He avoided surgery after doctors told him he likely could return to form with rehabilitation.
"I couldn't tell you where that stands right now, but I'm confident there will be something fair worked out hopefully soon," coach Jim Harbaugh said Tuesday night.
Gore, who held out for the first four days of training camp, said he hasn't received any word from the team on a potential extension. He spent several minutes chatting with general manager Trent Baalke as Tuesday's practice began.
Gore certainly will seek a contract comparable to the $43 million, five-year deal running back DeAngelo Williams -- 20 days older than San Francisco's star -- recently received from the Carolina Panthers. That includes $21 million guaranteed. Williams was sidelined for 10 games last year with a sprained right foot.
"I hope they do (reward me)," Gore said. "If they don't, I'll become a free agent."
Gore insists he feels like his old self again and is completely healthy.
"What do you think?" Gore said with a grin.
Yes, he looks it. Whether that's enough for the 49ers front office to make him a big-money offer before the Sept. 11 opener at home against the Seahawks is unclear. Management might want to see him in action for a while.
He begins the year third on the franchise career rushing list. He needs 931 yards to be No. 1, but said that's not his top priority.
The late Hall of Famer Joe Perry is San Francisco's leader in yards rushing (7,344) and rushing touchdowns (50).
Gore and the rest of the 49ers will wear Perry's No. 34 on their helmets this season. Perry, the first player with back-to-back 1,000-yard rushing seasons and nicknamed "The Jet" for his sensational speed, died in April at age 84.
"That is one of my goals. Hopefully I'll stay healthy and get it done," Gore said of topping Perry's mark. "I feel good. I feel like the 22-year-old Frank Gore, ready to take the load, ready to play. I feel like I can score any time I touch the ball. I can block anybody I've got to block. I'm just trying to get the offense down pat and get ready for Seattle."
Gore ran for 853 yards and three touchdowns in his sixth NFL season and caught 46 passes for 452 yards and two TDs. Gore's 24 100-yard rushing games are the most in 49ers history.
"I see a very buoyant guy when he's out there on the field. He loves to take reps," Harbaugh said. "He's a joy to be out on the practice field with because he really loves football. ... He's a tireless worker out there."
He isn't used to playing much in the preseason, but Harbaugh wanted to see Gore play. He was on the field for the first seven plays in a 24-3 loss at New Orleans last Friday night, carrying four times for 20 yards. He typically only takes part for a handful of snaps total during the exhibition season.
"I was hoping not to play because I feel like I like to work hard in practice," Gore said. "But I was happy that Coach had me out there for a couple plays, just to get some hits in and get up to speed in a game again. I didn't want to come out, really."
Harbaugh will get with Gore this week to determine how much if any he will play Saturday night against the Oakland Raiders.
Also Tuesday, the 49ers were still contemplating whether to sign veteran quarterback Daunte Culpepper, who worked out for the team a day earlier.
Harbaugh said the team would bring in some others for workouts but said, "I wouldn't rule that out" when asked about the possibility of Culpepper joining the team.